docs-sync

name	docs-sync
description	Sync the docs with the cc-safety-net source repo. Drafts page updates from the source drift, validates them, then advances SOURCE-SYNC.json and commits automatically.
disable-model-invocation	true

Docs sync workflow

SOURCE-SYNC.json records the last source commit the docs reflect. Run with no argument to sync (steps 1-7). Run with feedback text to revise the previous sync (see Feedback at the end).

Hard rules

1. SOURCE-SYNC.json changes only in step 7, and only to the last handled commit. For a partial sync that is the last commit of the handled PREFIX of the oldest-first list; never advance past an unread commit.

2. Drafted English prose follows the unslop skill's pattern-removal and plain-speech rules (~/.claude/skills/unslop/SKILL.md). Its "adding soul" section does NOT apply — these are reference docs, not essays.

3. Verify every fact against the source CODE, not against commit messages. Read the files the diff touches before you write a sentence about them.

4. Take flag spellings, defaults, error messages, and rule ids verbatim from the source. Do not paraphrase machine-checkable strings.

5. A "skip" is a decision. Record it in the step-7 report; never drop a commit silently.

6. make check needs Node < 25. Run it as: PATH="$HOME/.nvm/versions/node/v24.18.0/bin:$PATH" make check

7. The docs ship in three languages. Every English page has a Japanese mirror under ja/ and a Simplified Chinese mirror under zh-Hans/ at the same relative path. Never edit an English page without applying the same change, translated, to both mirrors in the same draft. Machine-checkable strings (flags, defaults, error messages, rule ids, code blocks) stay in English inside the translated prose.

8. A mirror is a published page, not a translation artefact. It must read as if a native technical writer wrote it — sentence-for-sentence machine translation of the English is a defect, even when the meaning is right. The standard for each language lives in this skill's references/ directory:

   • .claude/skills/docs-sync/references/localization-ja.md
   • .claude/skills/docs-sync/references/localization-zh-Hans.md

   Read the guide for a language before you write or review that language. Every translated sentence in a draft passes through the localization review in step 5 before the sync is committed.

9. Internal links in a mirror stay inside that mirror's tree (/ja/…, /zh-Hans/…), and a deep link in the English page stays a deep link in both mirrors. The anchor resolves against the translated heading on the target page, so read that page's headings before writing the anchor. Dropping or flattening a deep link is a regression, not a simplification.

Workflow

Step 1 — Measure the drift

Run make drift.

• "Docs are current" → report that and stop.
• Error → report it (source repo path or sha problem) and stop.
• Otherwise the output is the work-list, oldest first.

Step 2 — Triage every commit

Read each commit with git -C <path> show <sha> (take <path> from SOURCE-SYNC.json). Put each commit in one bin:

• Skip — tests, pure refactors, CI, internal cleanup. No user-visible change.
• Small — changes one fact on an existing page.
• Large — needs a new section or touches several pages.

Commits marked !: are breaking changes: assume an existing docs sentence is now WRONG and hunt for it (grep the published pages for the old behaviour).

Step 3 — Group by docs page

Convert the commit list into a page plan. Several commits often form one story (for example, a rule-catalogue restructure across five commits is ONE rewrite of one section). Plan in ENGLISH pages; the two mirrors of each planned page follow automatically (rule 7). Published English pages are the .mdx files in the repo root and in configuration/, reference/, and guides/; their mirrors live under ja/ and zh-Hans/. docs/, cc-safety-net-wiki/, .agents/, and .impeccable/ are not published.

Step 4 — Draft the edits

Invoke the unslop skill (Skill tool) before drafting, so its patterns are in context while you write (hard rule 2).

Edit the pages directly in the working tree. Each English page and its ja/ and zh-Hans/ mirrors are ONE unit of work: draft the English edit first, then translate that edit into both mirrors.

• If the plan touches more than ~4 English pages, fan out one subagent per page unit (Agent tool). Give each subagent: the commit shas, the source repo path, the English page plus its two mirror paths, and hard rules 2-4 and 7-9 above. Subagents do not inherit the unslop skill — include its path (~/.claude/skills/unslop/SKILL.md) with an instruction to read it before drafting English prose. Page units that share a story go to one subagent.
• Match the plain-language standard of the existing pages, and match the established terminology of the existing ja/ and zh-Hans/ pages.
• Translate the MEANING of the English edit into each mirror; do not map it sentence by sentence. Read that language's guide (hard rule 8) before you write the mirror text — writing it well the first time is cheaper than repairing it in step 5.
• A NEW English page needs new mirror pages at ja/<path> and zh-Hans/<path>, plus a navigation entry in ALL THREE language trees in docs.json (a renamed or deleted page updates all three trees the same way).
• If a fact cannot be verified in the code, leave the page unchanged and raise it as an open question instead of guessing.

When the English draft is done, self-audit its git diff against the unslop patterns before translating: changed passages only — untouched prose is not a work item. Cleaning the English first means both mirrors inherit the fix.

Step 5 — Localization review

The translation is reviewed by someone who did not write it. Fan out exactly two subagents (Agent tool), in parallel:

Subagent	Guide	Scope
Japanese editor	.claude/skills/docs-sync/references/localization-ja.md	every ja/ file this draft touched
Chinese editor	.claude/skills/docs-sync/references/localization-zh-Hans.md	every zh-Hans/ file this draft touched

Give each subagent:

1. The path to its guide, with an instruction to read it in full and follow it.
2. The list of mirror files this draft touched, and the git diff of those files, so it knows which passages are in scope.
3. The corresponding English pages, as the source of truth for meaning.
4. This scope rule: edit only the passages this draft added or changed. Surrounding text is context for terminology and tone, not a work item. A pre-existing problem elsewhere on the page gets REPORTED, never silently fixed — the user reviews this sync as one commit, and unrelated churn makes that review harder.
5. Hard rules 3-4 and 9: machine-checkable strings stay verbatim, and deep links stay deep and stay inside the mirror's own tree.

Each subagent edits the mirror files directly and returns the report its guide specifies. Apply their findings, and carry their reports into step 7.

A sentence that will not translate cleanly is usually a defective English sentence. When both mirrors come out awkward in the same place, or a reviewer has to fight a passage, suspect the source. The usual causes are one sentence carrying several framings of one fact, an abstraction the reader does not need, or a clause that restates something the section already said. Simplify the ENGLISH first, then translate the simplified version — do not translate around the problem. This is a fix to the draft, not a rewrite of the page: it needs the same fact-checking as any other edit (rule 3), and it changes all three languages together (rule 7).

If the English is ambiguous rather than overloaded, that is an open question about the English page, not a translation problem. Fix it in all three languages, or raise it in the report.

Step 6 — Validate

Run make check (see rule 6). Fix what it reports.

Step 7 — Commit and report

1. Edit SOURCE-SYNC.json: set sha to the last handled commit (hard rule 1 fixes what that is for a partial sync), syncedAt to today, and notes to "" — or, for a partial sync, to the list of unhandled items.
2. Stage the edited pages together with SOURCE-SYNC.json and commit both in ONE conventional commit: docs: sync with cc-safety-net <branch> through <short-sha>
3. Report to the user:
   • The commit hash and the new sync point.
   • A table: commit → decision (skip / documented) → English pages touched (mirrors are implied by rule 7; flag any mirror you could NOT update).
   • git show --stat of the commit.
   • Localization notes, condensed from the two step-5 reports: terminology decisions that required judgment, and pre-existing mirror problems the reviewers found but left alone.
   • Open questions, if any — including passages where the English source itself was ambiguous.

Do not push unless asked.

Feedback

/docs-sync <feedback text> revises the previous sync. Edit the committed pages per the feedback; changes to translated text go back through step 5 for the affected language. Re-run make check, then commit the revision as a follow-up docs: conventional commit. Never touch SOURCE-SYNC.json in a feedback revision — the sync point already advanced.